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HDFS, mail # user - Re: SNN not writing data fs.checkpoint.dir location


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Munna 2013-09-05, 18:47
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Re: SNN not writing data fs.checkpoint.dir location
Jitendra Yadav 2013-09-05, 18:56
Hi,

Well I think you should only restart your SNN after the change. Also
refer the checkpoint directory for any 'in_use.lock' file.

Thanks
Jitendra
On 9/6/13, Munna <[EMAIL PROTECTED]> wrote:
> Thank you Jitendar.
>
> After chage these perameter on SNN, is it require to restart NN also?
> please confirm...
>
>
> On Fri, Sep 6, 2013 at 12:10 AM, Jitendra Yadav
> <[EMAIL PROTECTED]>wrote:
>
>> Hi,
>>
>> If you are running SNN on same node as NN then it's ok otherwise you
>> should add these  properties at SNN side too.
>>
>>
>> Thanks
>> Jitendra
>> On 9/6/13, Munna <[EMAIL PROTECTED]> wrote:
>> > you mean that same configurations are required as NN in SNN
>> >
>> >
>> > On Thu, Sep 5, 2013 at 11:58 PM, Harsh J <[EMAIL PROTECTED]> wrote:
>> >
>> >> These configs need to be present at SNN, not at just the NN.
>> >>
>> >> On Thu, Sep 5, 2013 at 11:54 PM, Munna <[EMAIL PROTECTED]> wrote:
>> >> > Hi Yadav,
>> >> >
>> >> > We are using CDH3 and I restarted after changing configuration.
>> >> >  <property>
>> >> >                 <name>fs.checkpoint.dir</name>
>> >> >                 <value>/data/1/dfs/snn,/nfsmount/dfs/snn</value>
>> >> >                 <final>true</final>
>> >> >         </property>
>> >> >         <property>
>> >> >                 <name>fs.checkpoint.period</name>
>> >> >                 <value>3600</value>
>> >> >                 <description>The number of seconds between two
>> periodic
>> >> > checkpoints</description>
>> >> >         </property>
>> >> >
>> >> > I have entered these changes in Namenode only.
>> >> >
>> >> >
>> >> > On Thu, Sep 5, 2013 at 11:47 PM, Jitendra Yadav <
>> >> [EMAIL PROTECTED]>
>> >> > wrote:
>> >> >>
>> >> >> Please share your Hadoop version and hdfs-site.xml conf also I'm
>> >> >> assuming that you already restarted your cluster after changing
>> >> >> fs.checkpoint.dir.
>> >> >>
>> >> >> Thanks
>> >> >> On 9/5/13, Munna <[EMAIL PROTECTED]> wrote:
>> >> >> > Hi,
>> >> >> >
>> >> >> > I have configured fs.checkpoint.dir in hdfs-site.xml, but still
>> >> >> > it
>> >> >> > was
>> >> >> > writing in /tmp location. Please give me some solution for
>> >> checkpointing
>> >> >> > on
>> >> >> > respective location.
>> >> >> >
>> >> >> > --
>> >> >> > *Regards*
>> >> >> > *
>> >> >> > *
>> >> >> > *Munna*
>> >> >> >
>> >> >
>> >> >
>> >> >
>> >> >
>> >> > --
>> >> > Regards
>> >> >
>> >> > Munna
>> >>
>> >>
>> >>
>> >> --
>> >> Harsh J
>> >>
>> >
>> >
>> >
>> > --
>> > *Regards*
>> > *
>> > *
>> > *Munna*
>> >
>>
>
>
>
> --
> *Regards*
> *
> *
> *Munna*
>
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Jitendra Yadav 2013-09-05, 18:17
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Munna 2013-09-05, 18:24
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Harsh J 2013-09-05, 18:28
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Munna 2013-09-05, 18:33
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Jitendra Yadav 2013-09-05, 19:27